what i want to do is have a richtextbox lets say this is the text
1
2
3
4
[Code].....
and i what i want to do is have a timer and have it scroll down line by line so each letter gets show and some letters go off the richtextbox cuz its small
I Want Just Ask If It's Possible I Have A RichTextBox And I Wanted To Detect If The Control Needs A Scroll Bar But Without Performing The Any Other Function (Without Changing The Text).
View 1 Replies1) disable the scroll bar on a richtextbox
2) transfer all scroll capability to a standalone scrollbar control
I need to jump to the last viewed position of the text in my richtextbox when I open my project again.
I used GetScrollInfo to obtain the position of the scroll box within the scroll box.
How do make my application to jump to this same location on the scroll bar and also within the text in the richtext control?
I am using VS 2008 with .NET Framework 3.5.
i'm implementing search on a richtextbox and i want to auto scroll up/down left/right when needed. i tried ScrollToCaret but it always scrolls. even when the searched text already presented on the shown part of the text.
View 2 RepliesI would like to be able to vertically scroll some text in a richtextbox control in a loop so when it reaches the last line in the richtextbox it jumps back to line 0 and starts over, I can figure out the scrolling using code:
[Code]...
Which is placed in a timer but I am not sure how to reset the scrolling back to the top once it has been through all the lines of text. Using the above code just seems to go on forever even if there is no more text to show... I tried setting the POINT values to 0 but that does not help.
Has anyone got some ideas on how I can do it, I want to use this code as it gives a nice smooth scroll efect.. how can I reset the scroll position back to 0/the top of the richtextbox?
I am working in vb2008. I understand how to set a richtextbox's selectedstart property to a text block using .find. I would like to know how to tell the richtextbox to scroll to the selected position based upon the find operation and show its position at the top of the window. I would like to pass text blocks into my richtextbox control and have the control automatically scrolll to that position if the text block is found.
View 2 RepliesI want to be able to have a richtextbox scroll event synced with the scroll of another richtextbox. Do any of you know how this is possible
View 4 Replies1.how can i resize my project's form1?i mean my form1 only has fixed size.when i'm trying to maximize the form(by click a square on the top right corner of the form) my form remains in the same size even the window has fullfill my screen.
2.how can i make my project to become an installer?
3.how to make exe file from the project?
I have a RichTextBox and I need to find the position of the vertical scroll bar.
Is there any way to do this without Pinvoke? If not, what is a way to do this WITH Pinvoke?
I need to return an integer value.
how do you make a richtextbox scroll down automatically when text fills the screen so that the new line can be seen,
View 2 RepliesI am new to programming- basically I have a richtextbox1 with some data from the database,but when you scroll it scrolls 3 lines, whereas I want to scroll only one line at a time.
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim mySelectQuery As String
[code].....
I am trying to build a language tool, basically I am getting lines of text into a richtextbox and playing the audio for that line. Things are working great except that I want to highlight the text being played and autoscroll when it plays the next line. how to implement the line highlighting and autoscrolling.
View 2 RepliesI have a tab control with two tab pages. One page has the auto scroll enabled since there is to much content in the page. The middle mouse wheel doesn't scroll the scroll bar; I have to actually click and hold the scroll bar and drag it down to scroll. Is there a property to allow this?
View 2 RepliesI am having an odd problem with the Horizontal Scroll Control in my program.I am using it to scroll a series of panels across a form.This is my code:
Private
Sub scrHoriz_Scroll(ByVal
sender As[code]....
The problem is that this works perfectly if I use the left and right arrows and it also works perfectly if I use the scroll bar's slider SLOWLY. If I scroll using the slider and move it quickly then the scroll gets out of sync.The small change and large change are both set to 1 and maximum is set to 8
I have a DataGridView with a panel above it, that contains a group of textboxes above each column. My DataGridView has a horizontal scroll bar. What I want to do is when the DataGridView scrolls horizontally, scroll the panel with textboxes above it, so they stay aligned.I tried handling the DataGridView's scroll event, but I'm not sure what to do with it.
View 1 RepliesI am loading several command buttons into it (one in each grid box). I have the panel set to autoscroll. When TableLayoutPanel is set to AddColumns, all works well. However, I dont want horizontal scroll, I want vertical. When I set TableLayoutPanel to AddRows, a vertical scrollbar will not appear.
View 4 RepliesI've create my program before in Windowx XP ir required 1:37 seconds to finish the Genetic Algorithm but after I moved to Windows 7 64 bit and trying to used the 64 bits compiled version it runs much more slowly, it could take 5 minutes more, I've tried to change to 32 bit compiled version it run more faster than 64 bits but still slower than Windows XP it takes about 2:01. Is there something I missed in the compiling for 64 bits, or maybe the VS 2008 still not compatible with Windows 7.
View 3 RepliesI'm trying to query a remote machine and get the cpu percentage similar to task manager.. I have the following code:
Code:
im wmiK As New WMI
Private objMgmt As ManagementObject
[code].....
How would I leave the vertical scroll position as it is and set the horizontal scroll position all the way left if it isn't already in that position? I've been using Me.AutoScrollPosition and have come up with code that is satisfactory but I haven't been able to always leave the vertical scroll position exactly as it is and just move the horizontal scroll position to the left limit.
View 4 RepliesI have a textbox that shows events on a program, which I add. I use the 'scroll bar' option on the textbox to show the vertical scroll bar, but how do I make it stay at the bottom most possible? I am using this code while I am trying to learn how to do what I want the scroll bar to:[code]But how do I get it so the scroll bar will stay at the bottom-most it can? I'd like the newest, most recent events to appear at the bottom of the textbox, and to have the user not have to scroll down every time something new is added.
View 2 RepliesSo in this program that I've made, I have 5 tabs. One of them uses this chart control for .NET ver 3.5 that I downloaded from the Microsoft website. The issue is, though, that when I start the program, everything is fine until I click on the tab with the 3 charts on it. The tab freezes a little bit, and it takes a few seconds to load the charts. After this initial hiccup everything is fine, but I've tested this on three computers now and it happens to all of them. Anyone know what I can do to make these charts load faster or smoother? This is quite a roadblock.because otherwise I'd be done I've been working on this project in VB.NET for the past 3 weeks and it's my first time using the language. So far every single one of my questions on here has been answered and all within a day or two
View 5 RepliesI am working with serial port communications. I have very fast and continuous data on my serial port. I have a program to read data from serial port. I have comport.Datareceived event in my program to receive data. Now, the problem is there is data going every 100ms to comport. Will my comport.DataReceived event will receive also with that fast? Now,let's say there is data on comport and if I don't read it what happens to the data? The problem I'm facing is my dataReceived event is getting very slow after some time.If I stop sending data to my com, still my datareceiving program is receiving. That means it is not as fast as sending data.If I keep sending data from 4 to 5 days and coz my datareceived event is not that fast as sending, I am getting data very slowly and some times I am getting MemoryOutofRange Exception.
View 1 Repliesjust wondering if its possible to fade out a picturebox slowly after it has been clicked?
View 4 RepliesBackground :While running benchmark tests this morning, my colleagues and I discovered some strange things concerning performance of C# code vs. VB.NET code.We started out comparing C# vs. Delphi Prism calculating prime numbers, and found that Prism was about 30% faster. I figured CodeGear optimized code more when generating IL (the exe was about twice as big as C#'s and had all sorts of different IL in it.)
I decided to write a test in VB.NET as well, assuming that Microsoft's compilers would end up writing essentially the same IL for each language. However, the result there was more shocking: the code ran more than three times slower on C# than VB with the same operation! The generated IL was different, but not extremely so, and I'm not good enough at reading it to understand the differences.
Benchmarks I've included the code for each below. On my machine, VB finds 348513 primes in about 6.36 seconds. C# finds the same number of primes in 21.76 seconds.
Computer Specs and Notes
Intel Core 2 Quad 6600 @ 2.4Ghz
Every machine I've tested on there is a noticeable difference in the benchmark results between C# and VB.NET.Both of the console applications were compiled in Release mode, but otherwise no project settings were changed from the defaults generated by Visual Studio 2008.
VB.NET code
Imports System.Diagnostics
Module Module1
Private temp As List(Of Int32)
Private sw As Stopwatch
[code]....
Why is C#'s execution of Math.Sqrt() slower than VB.NET?
i have a .txt file containing 27,607 words, 1 per line, and i need my program to slowly read through and put it into a textbox/label. It only needs to read in order, not randomly or anything. It needs 2 be slow enough that I can read every word being shown, and if possible it would be nice to be able to change the speed but it is not needed.
Public Class Form1
Dim FILE_NAME As String = "C:My DocumentsWordList.txt"
Dim objReader As New System.IO.StreamReader(FILE_NAME)
[code]....
This is what i tried and all this does is displays 2 words in the middle of the file, then form goes white for about 5 seconds and then the last word in the file shows up and the program remains white. When i try with a txtbox only the last word is displayed.
I have a website(asp.net) which displays ssrs reports. Howevery everytime that I try to run the report from the website it takes about 2 min to load, but if I click on the report again , it will load up in seconds. I have tried to run a query that is used by the report and I get the results in second as well.
Is there any configuaration that I need to change or any tsql code that I need to add?
I have gone through to solutions provided here on stackoverflow but still had no luck.
I created a program that has 11 threads running simultaneously.Each thread runs a stopwatch and measures the amount of time that passes between the Start and Stop.There is no code between the start and stop, so most often, the result is 0 milliseconds.I noticed that INITIALLY, after a few minutes, the program would slow and the output to the RichTextBox would become disjointed.So, every two minutes, I have a timer execute and end the threads and restart them all.This seemed to help, however, after about an hour and a half, the program becomes more sluggish, evident in the stopwatches recording more instances over 0 milliseconds.Does this have to do with 'garbage collection' and is that even possible in VB .NET (I thought C only had that), or perhaps memory management?
View 1 RepliesI need to have a small window to appear slowly from the bottom of windows.is it a windows manipulation or it can be done in VB.net too.
View 10 RepliesI am porting VB.Net 2 code (VS 2005) to VB.Net 4 (VS 2010). So far things have been going relatively smooth. However, in testing my new ported code, I came across a strange behavior. In VS 2005 (.Net 2), I have a DataTable filled with data. I then use a DataAdapter to send updates back to the SQL Server. When I perform the qlClient.SqlDataAdapter.Update() command, it execute in roughly 4 seconds. The same code,on the same table in VS 2010 (.Net 4) runs in 1 Minute 17 Seconds. This is completely unacceptable. However, I have no clue as to why it is happening. The .Update() method is an internal command, not one that I modified in any way. It does not error out, it's just painfully slow.
View 1 Replies